Multiple drill.



W. E. FOX. MULTIPLE DRILL.

DDRO. 20, 1909. RENEWED SEPT. 4, 1912.

' Patented Apr. 8, 1913.

APPLICATION FILE 1,058,045.

2 SHEETS-BHBET 1.

W. R.'POX. MULTIPLE DRILL. .APPLIOATION FILED 1120'. 20, 1909. RENEWED snrw. 4, 1912.

Patented Apr. 8, 1913.

2 T E E E Q s T E E H s 00 a! a 0 I WILLIAM R. FOX, OF GRAND RAPIDS, MICHIGAN.

MULTIPLE DRILL.

eas es.

Patented Apr. 8, 1913.

Application filed December 20, 1909, Serial No. 534,130. Renewed Septembcret, 1912. Serial No. 718,552.

To (ZZZ whom it may concern Be it known that 1, WILLIAM R. Fox, a

State of Michigan, have invented certain new and useful Improvements in cation.

This invention relates to improvements in multiple drills.

The main objects provide an improved multiple drill in which the parts are so arranged as to be capable. of complete adjustment and one in which; accessiblej Further objects, and objects relating to. structural details, will definitely appear.

the adjusting means are readily from the detailed description to follow.

I accomplish the objects of my inventionby the devices and means described in the following specifics tion.

of my invention.

The inventlon is clearly defined and pointed out in the claims.

A structure constituting an effective and preferred embodiment of the features of tion. Fig. 2 is an enlarged detail vertical section through the drill supporting head, parts being shown in full line to better illustrate their form. Fig. 3 is a detail section taken on a line corresponding to line 3-3 of Fig. 2. Fig. 4 is a detail section taken on a line corresponding to line 4-4 of Fig. 2. Fig. 5 is a perspective view of one of the spindle bearings.

In the drawings, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the frame pref- Multiple; Drills, of which the following is a specihj I 1 may be of any form deslred.

of this invention are to The structure described constitutes one effective embodiment a part of The flexible driving connections for the drill spindles preferably comprise theuniversal joints 6 and the slip joints 7, see Fig. 2. The pinions 8 for these shafts are arranged in mesh with a driving gear 9'on the driving shaft 10. The driving connections for this shaft 10'are not illustrated as they The drill spindles are provided with bear-' ing blocks 11, which are mounted upon the supports 12, the supports being preferably provided with groove-like seats 13 to receive the bearings, see Fig. 3. The supports. 12 are provided with arms 14 havin longitudinal slots 15 therein, through which the supporting and clamping bolts,v 16 for the supports are arranged. The heads of the bolts .16 are arranged in the T-sl'ots 17 in the head so that the supports maybe adjusted thereon transversely and longitudinally, the bolts 16 serving-to clamp the supports to their adjusted position.

The bearing blocks 11 are preferably provlded with T-grooves 18 in-Which the heads 19 of the clamping bolts are-engaged. These bolts are'arranged longitudinally through the arms 14 so that their nuts 21 are at the outer ends of the arms and in a. convenient position for manipulation. Coact-ing clam ing bolts 22 are preferably provided, t e same being arranged below the arms 14. These bolts 22 are also always accessible no matter what position the supports may be adjusted to, as the nuts are always away from the center of the machine so that a wrench can be readily engaged therewith. This manner of arranging these bolts is of very great advantage on account of the ease and facility with which they may be adjusted with the supports in any position.

In my improved drilling machine, the parts are, as previously stated, very accessible so that the drills can be adjusted to any position which they are capable of filling very readily and easily, and I desire to remark that the adjustment is very complete.

T he parts are also very securely and effecvends thereof; and

ily occur to those skilled in the art to which this invention relates, I have not attempted to illustrate or describe the same herein.

Having thus described my invention, what I-claim as new and desire to secure by Lettors Patent is:

1.111 a multiple drill, the combination with the drill spindles, tions therefor including ble shafts provided with slip joints; a head with which said flexible shafts are grouped, faced on one side and provided with vertical of driving connec- & plurality of fiexi- 'l slots; bearing blocks; bearing block sup ports provided with longitudinally-slotted adjusting arms and seats for said bearing blocks; clam-ping bolts for said bearing blocks disposed longitudinally through said support arms with their nuts at the outer clamping bolts for adjusting said bearing block supports arranged through the slotted arms of said bearing block supports to clamp the same to said head. I

2. In a multiple drill, the combination with the drill spindles, of driving connections therefor including a plurality of flexible shafts provided with slip joints; a head with which said flexible shafts are grouped, faced on the under side; bearing blocks for said'drill spindles faced on-one side and pro-' adjusting arms and ble shafts provided with slip joints; .3, head with which said flexible shafts are. rouped, faced on the under side; bearing blocks" for said drill spindles faced on one side and provided with vertical T-slots; supports provided with seats for said bearing blocks; clamping bolts for said bearing blocks disposed with their heads in said 'T-slots parallel. with said sup port arms; and means to secure said bearing block supports adjustably to said head.

4. In a multiple drill, the combination of the drill spindle; flexible driving connections therefor; a fixed carrying head; adjustable bearing blocks for said drill spindles faced on one side and provided witha vertical T-adjust-ing slot; a bearing block support with adjusting arm and seat for said bearing block; clamping bolts =parallel to theadjusting arm disposed in said support and coiiperating with the T-slot to clamp the bearing block in lace; and means for securing said arm a ust-ably to said head. j

'5. In 'a multiple drill, the combination bearing block adjusting arms and with the drill spindles; driving connections i therefor; bearings for said spindles; su ports for said bearings having groove-11 e seats therem adapted to receive said bearings, said spindle bearings having vertical.

T-grooves in their seat-engaging .faces clamping bolts f said bearings engaged in said grooves therein and a head, for carrying said supports.

In witness whereof, I have hereunto set my hand and seal in the presence of-two witnesses. I

WILLIAM R. FOX. [1,. s] Witnesses:

EARL S'roxon, LENA CHURC 

